/*
 *   Copyright (c) 2008, Ueda Laboratory LMNtal Group <lmntal@ueda.info.waseda.ac.jp>
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions are
 *   met:
 *
 *    1. Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *    2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *
 *    3. Neither the name of the Ueda Laboratory LMNtal Group nor the
 *       names of its contributors may be used to endorse or promote
 *       products derived from this software without specific prior
 *       written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

package lavit.stateviewer.controller;

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;

import lavit.stateviewer.*;

public class StateGenerationControlPanel extends JPanel implements ActionListener {

	private StateGraphPanel graphPanel;

	JButton rootButton = new JButton("root");
	JButton upButton = new JButton("up");
	JLabel ancestors = new JLabel();

	public StateGenerationControlPanel(StateGraphPanel graphPanel){
		this.graphPanel = graphPanel;

		setLayout(new FlowLayout(FlowLayout.LEFT));
		setOpaque(false);

		rootButton.addActionListener(this);
		add(rootButton);

		upButton.addActionListener(this);
		add(upButton);

		add(ancestors);

	}

	public void updateLabel(StateNodeSet nodes){
		StateNode node = nodes.parentNode;
		String str = "";
		while(node!=null){
			str = node.id + (str.length()>0?" -> ":"") + str;
			node = node.parentSet.parentNode;
		}
		ancestors.setText(str);
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		Object src = e.getSource();

		if(src==rootButton){
			graphPanel.generationReset();
		}else if(src==upButton){
			graphPanel.generationUp();
		}
	}

}
